Snow glider or ski



Aug. Vl, 1939. E. wENNERsTRoM 2,163,144

sNow GLIDER 0R SKI Filed May 5, 1938 2 Sheets-Sheet 1 s2 Emi'PVmzers'rarn/ `f l 9 By Aug. l, 1939; E- WENNERSTROM '2,168,144

SNOW GLIDER OR SKI Filed May 5, 1958 2 Sheets-Sheet 2 Patented ug. 1V,1939 UNITED STATES PATENT OFFlCE SNOW GLIDER OR SKI Einar Wennerstrom,East Rochester, N. Y.

Application May 5, 1938, Serial No. 206,254

1 Claim.

My invention relates generally to means of locomotion over snow coveredsurfaces, and particularly to a snowglider or ski wherein means isprovided on the bottom thereof preventing backsliding of the snowglideror ski on an up-hill climb or stop, and an important object of myinvention is to provide ei'cient and practical arrangements of thischaracter.

Other important objects and advantages of my invention will be apparentfrom a reading of the following description taken in connection with thedrawings, wherein for purposes of illustration I have shown a preferredembodiment of my invention.

In the drawings:

Figure l is a general top plan view of a ski or snowglider in accordancewith the present invention.

Figure 2 is a bottom plan view of Figure 1.

Figure 3 is a right hand side elevational View of Figure 1.

Figure 4 is an enlarged fragmentary bottom plan View of Figure 1.

Figure 5 is an enlarged fragmentary side elevational view of Figure 1.

Figure 6 is a transverse vertical sectional view taken through Figure 1approximately on the line 6 6.

Figure 7 is a longitudinal vertical sectional view taken through Figure1 and showing the arrangement of the inserts. Y

Referring in detail to the drawings, the numeral 5 generally designatesthe ski or snowglider which has the general outline and form of aconventional ski or snowglider including on its top the footaccommodating portion 6 intermediate its ends into which merge theconcavo-convex longitudinal portions 'l and 8 which are convexed ontheir undersides as indicated by the numeral 9 in Figure 6. The groove 9extends substantially the full length of the ski or snowglider providingon its opposite sides the snow engaging surfaces I9 and lI above whichare the lateral longitudinal grooves I2 and I3.

In accordance with the present invention the snow engaging surfaces I0and II are provided at unequal intervals with inwardly extendingstep-cuts I4, I5, respectively, the step-cuts on the opposite sides ofthe groove 9 being staggered with their working faces I6 close togetheron the opposite sides of the groove 9 as illustrated to advantage inFigure 4 of the drawings. 'Ihese stepcuts, as shown in Figure 7, havethe large en-d 5 to the front of the ski or snowglider, and a triangularcross-section continuation I1 of the stepcuts, which continuation leadsinto the particular ground engaging elements I0, II in an upward andforward inclination and therein is xed in l0 some suitable manner awedge I8 of suitable long lasting material, such as hardwood whichpresents a substantially right angular shoulder I9 at the highest pointof the step-cut to provide purchase on the packed snow as the weight ofthe wearer 15 is placed on the snowgli'der or ski, so as to positivelyprevent backsliding in either climbing or standing. As shown in Figure 2of the drawings, the rst step-cut is located somewhat to the rear of thefront termination of the groove 9, while the last step-cut is locatedclose .to the rear end of the groove 9. It is to be observed that theinserts I8 have their laterally inward terminals of the portion I9extended laterally inwardly just over the edges of the groove 9, therebyproviding a better purchase on the snow during forward locomotion aswell as in climbing and in standing upon a backsliding incline.

AlthoughfI have shown and described herein a preferred embodiment of myinvention, it is to be denitely understood that I do not desire to limitthe application of the invention thereto, and any changeor changes maybe made in the materials and in the structure and arrangement of theparts, within the spirit of the invention and the scope of the subjoinedclaim.

Having described the invention, what is claimed as new is:

In a snowglider, a body formed on its bottom with substantially parallelsliding surfaces, said surfaces being formed with step-cuts atlongitudinal intervals, each step-cut dening a rearwardly facingshoulder for pushing rearwardly against snow in the step-cut, saidshoulder being formed with a slot, and a durable material insert in saidslot and exposed on said shoulder.

EINAR wENNERs'rRoM.

